Pyrite
Iron Sulfide (FeS2)
Category
Browse igneous and sedimentary mixture specimens identified by the Rock Identifier community.
Pyrite
Iron Sulfide (FeS2)
Diorite (Dalmatian Stone)
Phaneritic Plutonic Diorite
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Dalmation Stone
Peralkaline Rock (mixed silicate minerals)
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Ruby in Zoisite
Ruby (α-Al2O3) embedded in Zoisite (Ca2Al3(SiO4)3(OH)) with some Hornblende
Pet Rock (Man-made Quartzite or Granite Cobble)
Silicon dioxide (SiO2) mixture; commonly composed of Quartz, Feldspar, and Mica
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Quartz (beads)
SiO2 (Silicon Dioxide)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Quartz
Quartz (SiO₂)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Pyrite
Iron Sulfide (FeS2)
Druzy Quartz
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Puddingstone
Conglomerate (specifically a type of jasper conglomerate or quartz conglomerate)
Dalmation Stone
Peralkaline Rock (SiO2 with Arfvedsonite)
Orange Calcite
Calcium Carbonate (CaCO3)
Green Opal
Hydrated Silica (SiO2·nH2O)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Pyrite
Iron Sulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Dalmation Stone (Dalmation Jasper)
Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)